* {
    padding: 0;
    margin: 0;
    list-style: none;
    text-decoration: none;
    font-style: normal;
}

html {
    font-size: 16px;
}

// 导航栏
.box {
    height: 50px;
    background-color: #222;
    .container {
        padding: 0;
        // 导航栏
        .navbar-header {
            .navbar-brand {
                padding: 0 15px;
                display: flex;
                align-items: center;
            }
        }
        .navbar {
            border: none;
            margin-bottom: 0;
        }
        .navbar-wrapper {
            .navbar-brand {
                padding: 0 15px;
                >img {
                    width: 130px;
                }
            }
        }
    }
}

// 第一部分内容
.box1 {
    background-color: #8bc01f;
    .container {
        .row {
            margin: 3.75rem 0;
            .col-md-6 {
                // 第一个
                .title_1 {
                    margin: 0;
                    h1 {
                        color: #fff;
                        font-size: 5rem;
                        i {
                            display: inline-block;
                            width: 5.5rem;
                            height: 5.5rem;
                            border: 1px solid #fff;
                            background-color: #fff;
                            color: #8bc01f;
                            line-height: 5.5rem;
                            text-align: center;
                            margin-right: 1rem;
                        }
                    }
                }
                // 第二个
                .title_2 {
                    margin: 0;
                    padding-left: 1rem;
                    .col-md-12 {
                        padding-right: 0;
                        padding-left: .9375rem;
                        h3 {
                            display: inline-block;
                            color: #fff;
                        }
                    }
                }
                // 第三个
                .title_3 {
                    .col-md-12 {
                        padding-left: 1.5625rem;
                        p {
                            color: #fff;
                            font-size: 1rem;
                        }
                    }
                }
                // 第六个
                .title_6 {
                    .col-md-12 {
                        padding-left: 1.5625rem;
                    }
                }
            }
        }
    }
}

//第二部分内容
.box2 {
    background-color: #3393df;
    .container {
        .row {
            .md_a {
                padding-left: .9375rem;
                margin-top: 4.0625rem;
                // 标题
                .title_2 {
                    margin: 0;
                    h1 {
                        color: #fff;
                        font-size: 4rem;
                        i {
                            display: inline-block;
                            width: 5rem;
                            height: 5rem;
                            border: 1px solid #fff;
                            background-color: #fff;
                            color: #3393df;
                            line-height: 5rem;
                            text-align: center;
                            margin-right: 1rem;
                        }
                    }
                }
            }
            .md_b {
                margin: 12rem 0;
                h3 {
                    color: #fff;
                }
                p {
                    color: #fff;
                    line-height: 2;
                }
            }
            .md_c {
                margin-top: 25rem;
                margin-bottom: 6rem;
            }
        }
    }
}

//第三部分内容
.box3 {
    .container {
        margin-top: 8rem;
        margin-bottom: 8rem;
        .row {
            // 标题
            h1 {
                color: #3393df;
                font-size: 4rem;
                i {
                    display: inline-block;
                    width: 5rem;
                    height: 5rem;
                    border: 1px solid #fff;
                    background-color: #3393df;
                    color: #fff;
                    line-height: 5rem;
                    text-align: center;
                    margin-right: 1rem;
                }
            }
            h4:nth-of-type(1) {
                margin-top: 2rem;
                font-weight: 300;
            }
            h4:nth-of-type(2),
            h4:nth-of-type(3),
            h4:nth-of-type(4) {
                margin-top: 3rem;
                color: #3393df;
            }
            p {
                text-indent: 2em;
                color: #b9b9b9;
            }
            .tu_59 {
                margin-top: 4rem;
                text-align: center;
            }
        }
    }
}

//第四部分内容
.box4 {
    background-color: #f7f7f7;
    .container {
        margin-top: 8rem;
        margin-bottom: 8rem;
        .row {
            // 标题
            h1 {
                color: #3393df;
                font-size: 4rem;
                i {
                    display: inline-block;
                    width: 5rem;
                    height: 5rem;
                    border: 1px solid #fff;
                    background-color: #3393df;
                    color: #fff;
                    line-height: 5rem;
                    text-align: center;
                    margin-right: 1rem;
                }
            }
            h4:nth-of-type(1) {
                margin-top: 2rem;
                font-weight: 300;
            }
            h4:nth-of-type(2),
            h4:nth-of-type(3),
            h4:nth-of-type(4) {
                margin-top: 3rem;
                color: #3393df;
            }
            p {
                text-indent: 2em;
                color: #b9b9b9;
            }
            .tu_59 {
                margin-top: 4rem;
                text-align: center;
            }
        }
    }
}

//底部导航栏
.box6_nav {
    background-color: #3b3b3b;
    .container {
        .row {
            margin: 1.875rem 0 1.875rem;
            .col-md-9 {
                a {
                    color: #75767b;
                    font-size: .875rem;
                }
                p {
                    color: #75767b;
                    font-size: .75rem;
                }
            }
            .col-md-3 {
                display: flex;
                justify-content: space-between;
                .nn {
                    &:hover .zz {
                        display: block;
                    }
                    position: relative;
                    .zz {
                        position: absolute;
                        top: -10.5625rem;
                        left: -2.125rem;
                        display: none;
                    }
                }
            }
        }
    }
}

// ipad端 >= 768px   < 992px
@media screen and (min-width: 768px) and (max-width: 991px) {
    html {
        font-size: 14px;
    }
    .box {
        height: 100%;
        .navbar-wrapper {
            .navbar {
                margin-bottom: 0;
            }
            // 语言
            #navbar {
                .dropdown {
                    position: absolute;
                    top: 0;
                    right: 80px;
                }
            }
        }
    }
    //第一部分内容
    .box1 {
        .container {
            .row {
                p {
                    font-size: 16px !important;
                }
                .tu {
                    img {
                        display: none;
                    }
                }
            }
        }
    }
    //第二部分内容
    .box2 {
        .container {
            .row {
                .sm_a {
                    text-align: center;
                }
                .sm_b {
                    margin: 2rem 0;
                }
                .sm_c {
                    display: none;
                }
            }
        }
    }
    //第三部分内容
    .box3 {
        .container {
            margin: 4rem 0;
            .tu_59 {
                display: none;
            }
        }
    }
    //第四部分内容
    .box4 {
        .container {
            margin: 4rem 0;
            .tu_59 {
                display: none;
            }
        }
    }
    // 底部导航栏
    .box6_nav {
        .container {
            .row {
                .col-sm-3 {
                    .col-xs-12 {
                        &:nth-of-type(3) {
                            padding-right: 0;
                        }
                    }
                }
                .col-md-3 {
                    display: flex;
                    justify-content: space-between;
                    .nn {
                        &:hover .zz {
                            display: block;
                        }
                        position: relative;
                        .zz {
                            position: absolute;
                            top: -11.5625rem;
                            left: -2.125rem;
                            display: none;
                        }
                    }
                }
            }
        }
    }
}

// 移动端 < 768px
@media screen and (max-width: 767px) {
    html {
        font-size: 12px;
    }
    .box {
        height: 100%;
        .navbar-wrapper {
            .container {
                .navbar {
                    margin-bottom: 0;
                }
                // 语言
                #navbar {
                    position: absolute;
                    left: 0;
                    top: 50px;
                    background-color: #222;
                    width: 100vw;
                }
            }
        }
    }
    //第一部分内容
    .box1 {
        .container {
            .row {
                h1 {
                    font-size: 40px !important;
                }
                p {
                    font-size: 16px !important;
                }
                .tu {
                    img {
                        display: none;
                    }
                }
            }
        }
    }
    //第二部分内容
    .box2 {
        .container {
            .row {
                .sm_a {
                    text-align: center;
                }
                .sm_b {
                    margin: 2rem 0;
                }
                .sm_c {
                    display: none;
                }
            }
        }
    }
    //第三部分内容
    .box3 {
        .container {
            margin: 0;
            .tu_59 {
                display: none;
            }
        }
    }
    //第四部分内容
    .box4 {
        .container {
            margin: 4rem 0;
            .tu_59 {
                display: none;
            }
        }
    }
    // 底部导航栏
    .box6_nav {
        .container {
            .row {
                .col-xs-3 {
                    flex-wrap: wrap;
                    img {
                        margin-top: .625rem;
                    }
                }
                .col-md-3 {
                    display: flex;
                    justify-content: space-between;
                    .nn {
                        &:hover .zz {
                            display: block;
                        }
                        position: relative;
                        .zz {
                            position: absolute;
                            top: -17.5625rem;
                            left: -2.5rem;
                            display: none;
                        }
                    }
                }
            }
        }
    }
}